PLATE LXXXII A. HIDDEN GLACIER DELTA IN 1899 FROM PHOTO STATION C View by G. K. Gilbert. The Harriman Expedition ship George W. Elder at anchor at low tide. B. THE FRONT OP HIDDEN GLACIER DELTA IN 1910 Picture taken at low tide. Between 1899 and 1910 the front of this delta was built forward 1600 feet, so that the place where the Harriman Expedition ship was able to anchor at low tide in 1899 was dry land at all stages of tide in 1910. Both pictures from same site.